Quiz Game Show Buzzer using Arduino

A good friend of mine who’s a teacher was doing quizzes in her class making students compete to answer questions… resulting in them complaining they raised their hands before the others.
I decided to give her this quiz show type buzzer for Christmas to solve her problems.

When one of the players press it’s button (the fastest player wins this), the led of the right colour lights up saying he’s in control… and no other buttons from the other players work, until the master of the game decides if the answer is good or not by pressing a little button on the main unit, giving a point or not to the player in control.

If you have any questions, comments, constructive criticism… don’t hesitate to write 🙂

If you like my build, please like the video on YouTube and subscribe, it would be nice 🙂

P.S. There is a little problem with the display that I couldn’t figure out how to solve. When playing a tune, the display doesn’t light up anymore, like if no current goes to it anymore… anybody has an idea what the problem could be or how to fix it in code ? See the video if you don’t understand what I mean.